Mystery code is often clearer if you assemble it and look at the listing. BTW, shareware is not the same as open source.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר ________________________________________ From: IBM Mainframe Assembler List <ASSEMBLER-LIST@LISTSERV.UGA.EDU> on behalf of Tony Thigpen <t...@vse2pdf.com> Sent: Friday, July 19, 2024 10:56 AM To: ASSEMBLER-LIST@LISTSERV.UGA.EDU Subject: Don't do this...... Found in some shareware code: MVI RO,2 Please page down when you think you know what the program was doing. elsewhere RO EQU SEEKO+7,1 I finally figured out what was happening when I copied the code from the PC editor I was using to view the shareware code to a test program in xedit so I could see what it was actually doing. The character after the "R" was the letter 'OH', not a 'zero', but the pc editor does not display a significantly different item for zero and the letter 'O'. Tony Thigpen
